of/gpio: export of_gpio_simple_xlate
Allow GPIO drivers to use of_gpio_simple_xlate. This is useful for the
generic GPIO driver for example where gpio_chip is embedded in
bgpio_chip and doesn't need of_mm_gpio_chip but has a simple 1:1 GPIO
mapping.
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c
index 3007662..ef0105f 100644
--- a/drivers/of/gpio.c
+++ b/drivers/of/gpio.c
@@ -127,8 +127,8 @@
* gpio chips. This function performs only one sanity check: whether gpio
* is less than ngpios (that is specified in the gpio_chip).
*/
-static int of_gpio_simple_xlate(struct gpio_chip *gc, struct device_node *np,
- const void *gpio_spec, u32 *flags)
+int of_gpio_simple_xlate(struct gpio_chip *gc, struct device_node *np,
+ const void *gpio_spec, u32 *flags)
{
const __be32 *gpio = gpio_spec;
const u32 n = be32_to_cpup(gpio);
@@ -152,6 +152,7 @@
return n;
}
+EXPORT_SYMBOL(of_gpio_simple_xlate);
/**
* of_mm_gpiochip_add - Add memory mapped GPIO chip (bank)